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package weed_server
import (
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/util"
"net/http"
"strings"
"sync/atomic"
"time"
"github.com/chrislusf/seaweedfs/weed/stats"
)
func (fs *FilerServer) filerHandler(w http.ResponseWriter, r *http.Request) {
start := time.Now()
// proxy to volume servers
var fileId string
if strings.HasPrefix(r.RequestURI, "/?proxyChunkId=") {
fileId = r.RequestURI[len("/?proxyChunkId="):]
}
if fileId != "" {
stats.FilerRequestCounter.WithLabelValues("proxy").Inc()
fs.proxyToVolumeServer(w, r, fileId)
stats.FilerRequestHistogram.WithLabelValues("proxy").Observe(time.Since(start).Seconds())
return
}
w.Header().Set("Server", "SeaweedFS Filer "+util.VERSION)
if r.Header.Get("Origin") != "" {
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Credentials", "true")
}
switch r.Method {
case "GET":
stats.FilerRequestCounter.WithLabelValues("get").Inc()
fs.GetOrHeadHandler(w, r)
stats.FilerRequestHistogram.WithLabelValues("get").Observe(time.Since(start).Seconds())
case "HEAD":
stats.FilerRequestCounter.WithLabelValues("head").Inc()
fs.GetOrHeadHandler(w, r)
stats.FilerRequestHistogram.WithLabelValues("head").Observe(time.Since(start).Seconds())
case "DELETE":
stats.FilerRequestCounter.WithLabelValues("delete").Inc()
if _, ok := r.URL.Query()["tagging"]; ok {
fs.DeleteTaggingHandler(w, r)
} else {
fs.DeleteHandler(w, r)
}
stats.FilerRequestHistogram.WithLabelValues("delete").Observe(time.Since(start).Seconds())
case "POST", "PUT":
// wait until in flight data is less than the limit
contentLength := getContentLength(r)
fs.inFlightDataLimitCond.L.Lock()
for fs.option.ConcurrentUploadLimit != 0 && atomic.LoadInt64(&fs.inFlightDataSize) > fs.option.ConcurrentUploadLimit {
glog.V(4).Infof("wait because inflight data %d > %d", fs.inFlightDataSize, fs.option.ConcurrentUploadLimit)
fs.inFlightDataLimitCond.Wait()
}
fs.inFlightDataLimitCond.L.Unlock()
atomic.AddInt64(&fs.inFlightDataSize, contentLength)
defer func() {
atomic.AddInt64(&fs.inFlightDataSize, -contentLength)
fs.inFlightDataLimitCond.Signal()
}()
if r.Method == "PUT" {
stats.FilerRequestCounter.WithLabelValues("put").Inc()
if _, ok := r.URL.Query()["tagging"]; ok {
fs.PutTaggingHandler(w, r)
} else {
fs.PostHandler(w, r, contentLength)
}
stats.FilerRequestHistogram.WithLabelValues("put").Observe(time.Since(start).Seconds())
} else { // method == "POST"
stats.FilerRequestCounter.WithLabelValues("post").Inc()
fs.PostHandler(w, r, contentLength)
stats.FilerRequestHistogram.WithLabelValues("post").Observe(time.Since(start).Seconds())
}
case "OPTIONS":
stats.FilerRequestCounter.WithLabelValues("options").Inc()
OptionsHandler(w, r, false)
stats.FilerRequestHistogram.WithLabelValues("head").Observe(time.Since(start).Seconds())
}
}
func (fs *FilerServer) readonlyFilerHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Server", "SeaweedFS Filer "+util.VERSION)
if r.Header.Get("Origin") != "" {
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Credentials", "true")
}
start := time.Now()
switch r.Method {
case "GET":
stats.FilerRequestCounter.WithLabelValues("get").Inc()
fs.GetOrHeadHandler(w, r)
stats.FilerRequestHistogram.WithLabelValues("get").Observe(time.Since(start).Seconds())
case "HEAD":
stats.FilerRequestCounter.WithLabelValues("head").Inc()
fs.GetOrHeadHandler(w, r)
stats.FilerRequestHistogram.WithLabelValues("head").Observe(time.Since(start).Seconds())
case "OPTIONS":
stats.FilerRequestCounter.WithLabelValues("options").Inc()
OptionsHandler(w, r, true)
stats.FilerRequestHistogram.WithLabelValues("head").Observe(time.Since(start).Seconds())
}
}
func OptionsHandler(w http.ResponseWriter, r *http.Request, isReadOnly bool) {
if isReadOnly {
w.Header().Add("Access-Control-Allow-Methods", "GET, OPTIONS")
} else {
w.Header().Add("Access-Control-Allow-Methods", "PUT, POST, GET, DELETE, OPTIONS")
}
w.Header().Add("Access-Control-Allow-Headers", "*")
}
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